Gonyaulacysta serrata

"serrata" (Cookson and Eisenack, 1958, p.34, pl.3, fig.2; text-figs.12–14) Sarjeant, 1969, p.11.  Holotype: Cookson and Eisenack, 1958, pl.3, fig.2; Jan du Chêne et al., 1986a, pl.99, figs.3–4.  NOW Rhynchodiniopsis.  Originally Gonyaulax (Appendix B), subsequently Gonyaulacysta, thirdly Hystrichogonyaulax, fourthly (and now) Rhynchodiniopsis.  This combination was not validly published in Sarjeant (1966b, p.131), since that author did not fully reference the basionym.  Age: Late Jurassic–Neocomian.

Parent: Gonyaulacysta